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For 2021 - online Python 3 training - see ((here)).

Our plans were to retire in summer 2020 and see the world, but Coronavirus has lead us into a lot of lockdown programming in Python 3 and PHP 7.
We can now offer tailored online training - small groups, real tutors - works really well for groups of 4 to 14 delegates. Anywhere in the world; course language English.

Please ask about private 'maintenance' training for Python 2, Tcl, Perl, PHP, Lua, etc.
Every link has two ends - fixing 404s at the recipient

"They have printed the wrong link." Thus starts a frustrated post on the Save the Train web site, worried that a link in the local newspaper to our support pledge page ends up at a "404". And, yes, they have dropped the newspaper a line too, hoping to catch them before the online edition goes "printed".

But every link has two ends ... and since the error in the URL still leaves the URL pointing to our server, and just the wrong place on it, a very short mod_rewrite request means that the paper's site is now pointing at the correct place - in addition to the URL that everyone else is using.

-bash-2.05b$ cat .htaccess
RewriteEngine On
RewriteRule pledge$ pledge.html
-bash-2.05b$


So that's /pledge linked to /pledge.html

It's not the first time I've done this "trick" and indeed, given a substantial number of erroneous follows, I can sometimes spot such things in our log analyses. In this case we caught it very early, though!
(written 2008-04-02, updated 2008-04-03)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
W512 - Web and Intranet - Site Design Aspects
  [229] A fortunate accident - (2005-02-27)
  [261] Putting a form online - (2005-03-29)
  [288] Colour blindness for web developers - (2005-04-22)
  [319] Accommodation and landing pages - (2005-05-21)
  [345] Spotting a denial of service attack - (2005-06-12)
  [352] Improved mining techniques! - (2005-06-19)
  [391] One mans pleasure is another mans poison - (2005-07-26)
  [510] Dynamic Web presence - next generation web site - (2005-11-29)
  [556] Colour doesn't have to mean colourful - (2006-01-06)
  [649] Denial of Service ''attack'' - (2006-03-17)
  [718] Protecting images from theft - (2006-05-12)
  [795] Remember a site's non-technical issues too - (2006-07-07)
  [823] An excellent use for a visitor count? - (2006-08-05)
  [859] Put the answer in context - it may be printed - (2006-09-08)
  [918] Databases needn't be frightening, hard or expensive - (2006-11-08)
  [1015] Search engine placement - long term strategy and success - (2006-12-30)
  [1047] Maintainable code - some positive advice - (2007-01-21)
  [1054] UK legal requirements for your commercial web site - (2007-01-27)
  [1353] Mood shots - (2007-09-16)
  [2214] Global Index to help you find resources - (2009-06-01)
  [3517] Tags used in writing this blog - (2011-11-12)
  [3563] How big is a web page these days? Does the size of your pages matter? - (2011-12-26)
  [3589] Promoting a single one of your domains on the search engines - (2012-01-22)

A606 - Web Application Deployment - Apache httpd - log files and log tools
  [376] What brings people to my web site? - (2005-07-13)
  [1237] What proportion of our web traffic is robots? - (2007-06-19)
  [1503] Web page (http) error status 405 - (2008-01-12)
  [1656] Be careful of misreading server statistics - (2008-05-28)
  [1761] Logging Cookies with the Apache httpd web server - (2008-08-20)
  [1780] Server overloading - turns out to be feof in PHP - (2008-09-01)
  [1796] libwww-perl and Indy Library in your server logs? - (2008-09-13)
  [3015] Logging the performance of the Apache httpd web server - (2010-10-25)
  [3019] Apache httpd Server Status - monitoring your server - (2010-10-28)
  [3027] Server logs - drawing a graph of gathered data - (2010-11-03)
  [3087] Making the most of critical emails - reading behind the scene - (2010-12-16)
  [3443] Getting more log information from the Apache http web server - (2011-09-16)
  [3447] Needle in a haystack - finding the web server overload - (2011-09-18)
  [3491] Who is knocking at your web site door? Are you well set up to deal with allcomers? - (2011-10-21)
  [3554] Learning more about our web site - and learning how to learn about yours - (2011-12-17)
  [3670] Reading Google Analytics results, based on the relative populations of countries - (2012-03-24)
  [3974] TV show appearance - how does it effect your web site? - (2013-01-13)
  [3984] 20 minutes in to our 15 minutes of fame - (2013-01-20)
  [4307] Identifying and clearing denial of service attacks on your Apache server - (2014-09-27)
  [4404] Which (virtual) host was visited? Tuning Apache log files, and Python analysis - (2015-01-23)
  [4491] Web Server Admin - some of those things that happen, and solutions - (2015-05-10)


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Selling curry to the chinese takeaway
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Please support improvements in our train service
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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